> Mark Brown <broonie@xxxxxxxxxx> hat am 7. Mai 2015 um 21:32 geschrieben: > > > On Thu, May 07, 2015 at 09:25:19PM +0200, Stefan Wahren wrote: > > > Mark Brown <broonie@xxxxxxxxxx> hat am 7. Mai 2015 um 20:52 geschrieben: > > > > > In the bootloader code enabling the DC-DC is critical. There is a known > > > > issue > > > > which falsely triggers the brownout detection. > > > > Why would the driver not provide these operations? > > > I didn't implement this operation because the suggested workaround for the > > hardware issue isn't very nice > > (disable brownout detection during enabling DC-DC). I was afraid of the > > implementation. > > That doesn't sound too complicated? > Okay, i think i managed the brownout handling. Unfortunately i'm stuck at the next step. The DC-DC (3 way output) can supply 3 LDOs vddd, vdda, vddio. In case of a DC-DC state change the 3 regulators needs to be reconfigured before. I tought of REGULATOR_EVENT_PRE_DISABLE and REGULATOR_EVENT_PRE_ENABLE events, but i'm not sure that's the right way to achieve a synchronization between DC-DC and consuming LDOs. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
